media: platform: bdisp: move config to its own file

In order to better organize the platform/Kconfig, place
bdisp-specific config stuff on a separate Kconfig file.
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/platform/Kconfig

@@ -122,15 +122,7 @@ config VIDEO_SAMSUNG_S5P_MFC
 	help
 	    MFC 5.1 and 6.x driver for V4L2
 
-config VIDEO_STI_BDISP
-	tristate "STMicroelectronics BDISP 2D blitter driver"
-	depends on V4L_MEM2MEM_DRIVERS
-	depends on VIDEO_DEV && VIDEO_V4L2
-	depends on ARCH_STI || COMPILE_TEST
-	select VIDEOBUF2_DMA_CONTIG
-	select V4L2_MEM2MEM_DEV
-	help
-	  This v4l2 mem2mem driver is a 2D blitter for STMicroelectronics SoC.
+source "drivers/media/platform/sti/bdisp/Kconfig"
 
 source "drivers/media/platform/sti/delta/Kconfig"
 

drivers/media/platform/sti/bdisp/Kconfig

+# SPDX-License-Identifier: GPL-2.0-only
+config VIDEO_STI_BDISP
+	tristate "STMicroelectronics BDISP 2D blitter driver"
+	depends on V4L_MEM2MEM_DRIVERS
+	depends on VIDEO_DEV && VIDEO_V4L2
+	depends on ARCH_STI || COMPILE_TEST
+	select VIDEOBUF2_DMA_CONTIG
+	select V4L2_MEM2MEM_DEV
+	help
+	  This v4l2 mem2mem driver is a 2D blitter for STMicroelectronics SoC.